Results 11 to 20 of about 2,777,013 (241)

RF-MEMS switches for reconfigurable antennas [PDF]

open access: yes, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Reconfigurable antennas are attractive for many military and commercial applications where it is required to have a single antenna that can be dynamically ...
Spasos, Michail N
core   +7 more sources

Simulation and analytical performance studies of generic atm switch fabrics. [PDF]

open access: yes
As technology improves exciting new services such as video phone become possible and economically viable but their deployment is hampered by the inability of the present networks to carry them.
Burton, Nigel John
core   +9 more sources

Self-Adaptive Pendulum-Ball Switches for Piezoelectric Synchronous-Extraction Circuits

open access: yesMicromachines, 2022
Electronic synchronous switches are usually used to enhance the performance of piezoelectric energy-extraction circuits, but the electronic components leading to additional power consumption are not desired for energy extraction. In view of the advantage
Yao Huang, Gang Qin, Weiqun Liu
doaj   +1 more source

Fault Current Limiting and Breaking Characteristics of SFCLB Using Flux Coupling with Tap Changer

open access: yesEnergies, 2020
In this paper, a superconducting fault current limiting breaker (SFCLB) using flux coupling with a tap changer is suggested and its effective fault current limiting and breaking characteristics due to the winding method using its tap changer are analyzed.
Sung-Hun Lim, Jin-O. Kim, Youngjin Jeong
doaj   +1 more source

Design of the water-cooling structure for the 100 kA DC mechanical switch in the CRAFT quench protection system

open access: yesAIP Advances, 2023
The DC mechanical switch is connected in series with the superconducting magnet in the quench protection system. As the main switch that carries the magnet current for a long time, the temperature of its conductive unit, especially the contact part ...
Xingguang Hu   +5 more
doaj   +1 more source

Parameters design of voltage sharing components for the series multi‐break mechanical switch

open access: yesIET Science, Measurement & Technology, 2022
Series multi‐break mechanical switch is one of the critical components of high‐voltage hybrid DC circuit breakers. However, due to the existence of distributed capacitance, the voltage distribution between the breaks is not balanced.
Daochun Huang   +5 more
doaj   +1 more source

RF-MEMS switch actuation pulse optimization using Taguchi's method [PDF]

open access: yes, 2011
Copyright @ 2011 Springer-VerlagReliability and longevity comprise two of the most important concerns when designing micro-electro-mechanical-systems (MEMS) switches.
K. Tsiakmakis   +7 more
core   +1 more source

Research on Overall Design of Quench Protection System for CFETR

open access: yes南方能源建设, 2022
[Introduction] The huge energy stored in the superconducting magnet in quench state is transferred and consumed by China Fusion Engineering Experimental Reactor (CFETR) quench protection system to prevent it from damage.
Qianglin XU   +4 more
doaj   +1 more source

Design and simulation of RF MEMS switches with the supporting columns

open access: yesEnergy Reports, 2022
This paper introduces the principle of RF MEMS switch and performs modeling analysis. By analyzing the low control voltage and microwave power of the switch, phenomena such as long response time and susceptibility to mechanical failure appear. Therefore,
Hongyu Zhu   +4 more
doaj   +1 more source

Differences in Mechanical Parameters of Keyboard Switches Modulate Motor Preparation: A Wearable EEG Study

open access: yesFrontiers in Neuroergonomics, 2021
The mechanical parameters of keyboard switches affect the psychological sense of pressing. The effects of different mechanical parameters on psychological sense have been quantified using questionnaires, but these subjective evaluations are unable to ...
Hiroki Watanabe   +10 more
doaj   +1 more source

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